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Mass Transfer

Mass Transfer
The film penetration model of mass transfer was enunciated by

Gilliland
Fick
Stefan
Toor and Marchello

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Mass Transfer
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

Perfectly mixed
Both plug & perfectly mixed
Plug
None of the listed here

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Mass Transfer
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the

Thermal diffusivity
Kinematic viscosity
Mass transfer co-efficient
Volumetric diffusivity

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Mass Transfer
Antibiotics are best handled in a

Pulsed column extractor
Sieve tray contractor
Podbielniak extractor
Rotating disc contactor

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Mass Transfer
Separation of __________ employs gaseous diffusion process.

Isotopes of uranium
Isotopes of helium
N₂ and O₂ from air
SO₂ and air

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Mass Transfer
What is the reflux ratio at total reflux?

Unity
Zero
Infinity
Data insufficient

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